@xmagmax Plotting works in the way, that gpu generates plots in memory and than plots are written from memory to drive. So even if you can speed up the generate part with more GPUs, you are still limited to drive write speed. Or in other words, you can not generate plotsfile faster, than your drive can write data. You may reach better results if you plot to multiple drives at once.

@xmagmax In general if you use optimizer or xplotter or gpuplotter in direct mode ... always if you create a optimized plotfile, more memory will speed up the process. Over all, you will need less drive re-position head and write operations if you use more ram. More data can be cached and written on one re-position head + write operation.

@xmagmax The optimizer is done ... it says 100% ... just has not updated the text in the bottom. I always check the 'Delete plotfile when done' ... so i can be 100% sure it is done, once the source/org. plotfile got deleted.

@h3rsh3yb3ar3 There is no auto-detection or something, in a lot of cases deviceId 0 and platformId 0 just works (i had to choose a default and took the one that works for me) ... but there is no guarantee at all, no idea on what it depends :-) Therefore i added the info on jminer startup, so you can eays see if you have to adjust this settings.